frontier Engineering

5 个科学问题 · 工程技术 Engineering

本页目录

仿生材料受什么启发?

What inspires biomimetic materials?

它们模仿自然界结构,如莲叶的自清洁、壁虎脚趾的粘附、贝壳的层状增韧,用微观结构设计出疏水、强韧或自修复的新材料。
They mimic nature, lotus self-cleaning, gecko adhesion, shell layering, using micro-structure for hydrophobic, tough or self-healing materials.
难度 进阶 · 适合 大众 CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source

出处备注:本题原挂出处与答案内容不符,已撤回;具体书目待补,暂不展示来源。

本题原挂出处与答案内容不符,已撤回;具体书目待补。

Previous citation withdrawn as unsupported for this answer; a specific source is pending.

#材料 #仿生

建筑3D打印如何工作?

How does construction 3D printing work?

它用机械臂或龙门架把混凝土或特种砂浆按数字模型逐层挤出堆叠,像写毛笔字一样打印墙体,可节约模板与人力、实现异形结构。
A robotic arm or gantry extrudes concrete layer by layer per a digital model, printing walls like brush strokes, saving formwork and enabling organic shapes.
难度 进阶 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source

Behrokh Khoshnevis,《Contour Crafting》,Academic Press(Elsevier),2006

B. Khoshnevis, Contour Crafting, Academic Press, 2006

#制造 #建筑打印

电动车电池为什么要热管理?

Why do EV batteries need thermal management?

锂电池在过高或过低温度下容量、寿命和安全都会恶化,热管理系统把电芯温度维持在适宜区间,并均衡单体间温差以防热失控。
Li-ion cells lose capacity, life and safety outside a narrow temperature band, so thermal management keeps cells in range and balances cell temperatures to prevent thermal runaway.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-10-04
来源 · Source

Linden & Reddy,《林登电池手册》(第4版)

Linden & Reddy, 'Lindens Handbook of Batteries' (4th ed.)

#新能源 #电池热管理

绿氢是怎么制取的?

How is green hydrogen produced?

绿氢用可再生能源发电,再通过电解槽把水电解成氢气和氧气,全过程零碳排放,被视为难减排行业的清洁燃料。
Green hydrogen uses renewable electricity to electrolyze water into H2 and O2 with zero emissions, seen as a clean fuel for hard-to-abate sectors.
难度 进阶 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source

Larminie & Dicks,《燃料电池系统解析》(第2版)

Larminie & Dicks, 'Fuel Cell Systems Explained' (2nd ed.)

#新能源 #氢能

风力发电机怎样把风变成电?

How does a wind turbine turn wind into electricity?

叶片受风推动旋转,经主轴和齿轮箱(或直驱)带动发电机转子切割磁感线发电,控制系统随风速调节桨距和偏航以保安全高效。
Blades spin from wind, driving a generator, via gearbox or direct-drive, to produce electricity; controls adjust pitch and yaw for safe, efficient operation.
难度 进阶 · 适合 幼儿(3-6) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

David Macaulay,《The Way Things Work》,Houghton Mifflin,1988;中译《万物运转的秘密》

D. Macaulay, The Way Things Work, Houghton Mifflin, 1988; Chinese ed.

#新能源 #风电